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    Command:

    sched_getparam

    
    
    

    SYNOPSIS

           #include <sched.h>
    
           int sched_setparam(pid_t pid, const struct sched_param *param);
    
           int sched_getparam(pid_t pid, struct sched_param *param);
    
           struct sched_param {
               ...
               int sched_priority;
               ...
           };
    
    
    

    DESCRIPTION

           sched_setparam()  sets  the  scheduling  parameters associated with the
           scheduling policy for the process identified by pid.  If pid  is  zero,
           then the parameters of the calling process are set.  The interpretation
           of the argument param depends on the scheduling policy of  the  process
           identified  by pid.  See sched_setscheduler(2) for a description of the
           scheduling policies supported under Linux.
    
           sched_getparam() retrieves the scheduling parameters  for  the  process
           identified  by pid.  If pid is zero, then the parameters of the calling
           process are retrieved.
    
           sched_setparam() checks the validity of param for the scheduling policy
           of  the  thread.   The  value param->sched_priority must lie within the
           range given by sched_get_priority_min(2) and sched_get_priority_max(2).
    
           For  a  discussion  of  the  privileges  and resource limits related to
           scheduling priority and policy, see sched_setscheduler(2).
    
           POSIX systems on which sched_setparam() and sched_getparam() are avail-
           able define _POSIX_PRIORITY_SCHEDULING in <unistd.h>.
    
    
    

    RETURN VALUE

           On  success, sched_setparam() and sched_getparam() return 0.  On error,
           -1 is returned, and errno is set appropriately.
    
    
    

    ERRORS

           EINVAL The argument param does not make sense for the current  schedul-
                  ing policy.
    
           EPERM  The calling process does not have appropriate privileges (Linux:
                  does not have the CAP_SYS_NICE capability).
    
           ESRCH  The process whose ID is pid could not be found.
    
    
    

    CONFORMING TO

           POSIX.1-2001.
    
    
    

    NOTES

    
    

    Linux 2013-09-17 SCHED_SETPARAM(2)

    
    
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